Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 07b5c8867dfd8461…

MALICIOUS

Office (OLE) / .DOCX

150.9 KB Created: 2020-09-18 17:14:00 Authoring application: Microsoft Office Word
MD5: 30860d786953e87c5036c65b492c3774 SHA-1: 860034f626dde04f33f1f15c3d24743db0ff1681 SHA-256: 07b5c8867dfd8461d140a439bce35285a61af1eab432f8a79a9880a37bc63d85
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is identified as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9763589-0', indicating it is likely part of the Emotet family. The presence of a VBA macro, specifically triggered by the 'Document_open' event and utilizing 'CreateObject', strongly suggests a downloader functionality. This macro is designed to execute a second-stage payload, likely from a remote source, which is a common Emotet behavior.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9763589-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9763589-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
96b83a59c729d4e2629caf4138babfc6cae62a32b23cb8c4d357b221daf4ba67		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20042 bytes

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